1·According to my rough statistics, some commodities take up only one tenth, one twentieth or even one fiftieth of the space in the huge package.
据我粗略的统计，有的商品在大包装中仅占空间十分之一，二十分之一，甚至五十分之一。
2·Since the silicon material is an expensive component of a conventional solar cell, a cell that requires just one-fiftieth of the amount of this semiconductor will be much cheaper to produce.
由于硅材料是传统太阳能电池中一种很昂贵的成分，所以一种只需要1/50这种半导体材料的太阳能电池投入生产将更加便宜。
3·The last one was added in 1959 when Hawaii became the fiftieth state of the United States of America.
最后一颗星是在1959年夏威夷成为美国第五十个州时加上去的。